Crusader
Moderator
Instead of continuing on with a lengthy thread where this all started, I decided to post up a new thread with as much detail as I'm capable of (don't expect much, lol). Here's the thread from where this thread is continuing from:
http://www.texashotboats.com/forums/index.php?topic=11790.0
Also, I got a lot of help from Tom over at Jetboat Performance too.
http://forum.jetboatperformance.biz/index.php/topic,20.0.html
Originally I started off with these Trumpet style exhaust tips:
The trumpets appeared to be fine however my desire to upgrade to the below tips was actually a blessing in disguise, as you'll soon see.
First thing I wanted to do was take the old tips off. Come to find out that they have probably been installed in this boat since it was made in 1978 and they were extremely difficult to remove. So once I scraped away all of the caulking and sealant, I went to town. I had to use my trucks scissor jack to push the old tip out as there was no other way it was coming out.
Once the tip came out (with a lot of persuasion) I then discovered I had bigger issues than anticipated on my hands....this is where the blessing comes into play. As you can see, the pipe was so corroded that the water was leaking into the boat through the holes that developed over time.
The result of that leaking exhaust pipe is some rot in the transom wood.
So I cut a bigger, 4 inch hole, in the transom to accommodate the larger exhaust pipes and then had to fill in the rotted area with matting and epoxy resin.
After the epoxy dried, I had to re-fit the new tips
I used the GE Silicone to seal the tips in as well as 1 inch SS lag screws to attach the tips to the transom. After spending a Saturday and a Sunday on this project, the final outcome turned out to be an incredible success.
http://www.texashotboats.com/forums/index.php?topic=11790.0
Also, I got a lot of help from Tom over at Jetboat Performance too.
http://forum.jetboatperformance.biz/index.php/topic,20.0.html
Originally I started off with these Trumpet style exhaust tips:

The trumpets appeared to be fine however my desire to upgrade to the below tips was actually a blessing in disguise, as you'll soon see.


First thing I wanted to do was take the old tips off. Come to find out that they have probably been installed in this boat since it was made in 1978 and they were extremely difficult to remove. So once I scraped away all of the caulking and sealant, I went to town. I had to use my trucks scissor jack to push the old tip out as there was no other way it was coming out.

Once the tip came out (with a lot of persuasion) I then discovered I had bigger issues than anticipated on my hands....this is where the blessing comes into play. As you can see, the pipe was so corroded that the water was leaking into the boat through the holes that developed over time.


The result of that leaking exhaust pipe is some rot in the transom wood.

So I cut a bigger, 4 inch hole, in the transom to accommodate the larger exhaust pipes and then had to fill in the rotted area with matting and epoxy resin.


After the epoxy dried, I had to re-fit the new tips


I used the GE Silicone to seal the tips in as well as 1 inch SS lag screws to attach the tips to the transom. After spending a Saturday and a Sunday on this project, the final outcome turned out to be an incredible success.

